Industries List
| Name | Province | City | |
|---|---|---|---|
| Armstrong Plant - Kohler Canada Co. | British Columbia | Armstrong | |
| Armstrong Plant - MAAX Bath Inc. | British Columbia | Armstrong | |
| Arnprior Aerospace Inc. - Arnprior Aerospace Inc. | Ontario | Arnprior | |
| Arriva 02-25 Gas Plant - Petrus Resources Ltd. | Alberta | Rocky Mountain House | |
| ARROWWOOD 1-7 GGS - SEOL Energy Inc | Alberta | Farrow | |
| Artco International Inc. - Chervin Custom Woodworks Inc. | Ontario | St. Clements | |
| Arthur P. Kennedy Water Treatment Plant - Ontario Clean Water Agency | Ontario | Mississauga | |
| Arts Metal Finishing - 2399296 Ontario Inc. | Ontario | Downsview | |
| Ashbridges Bay Treatment Plant - City of Toronto | Ontario | Toronto | |
| Ashton Plant - Lehigh Hanson Materials Limited | Ontario | Ashton |
